Bộ chất chuẩn gốc pH SRM#191d (Sodium Bicarbonate (191d-I) Sodium Carbonate (191d-II) pha dung dịch chuẩn pH, NIST, USA

Mã sản phẩm: SRM# 191d

Trạng thái: Hàng Order

Xuất xứ: NIST, USA

Giá bán: Liên hệ

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  • pH Standards SRM# 191d

    Sodium Bicarbonate (191d-I) & Sodium Carbonate (191d-II)

    Availability: Available for Purchase

    Unit of Issue: 1 bottle x 25 g;1 bottle x 30 g
    Unit Description: A unit of SRM 191d consists of 25 g of sodium bicarbonate (191d I) and 30 g of sodium carbonate (191d II), each contained in its respective clear glass bottle.

    Product Expiration Date: 30 November 2032

    Certificate/Report

    Revision History:
    05 February 2025 (Editorial changes; updated format).

    Certificates of previous issues of this material are available here.

    NIST Storage Temperature: Ambient
    Please see certificate for user storage information regarding this material.

    Safety Information

    Table(s) of Related Materials pH Calibration

  • This Standard Reference Material (SRM®) is intended for use in preparing solutions for calibrating electrodes for pH measuring systems

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